# EPA-420-R-10-007

February 2010 

# Assessment and Standards Division

Office of Transportation and Air Quality

U.S. Environmental Protection Agency

Prepared for EPA by

ICF International

and

T&B Systems

EPA Contract No. EP-C-06-094

Work Assignment No. 3-6 

# Development and Evaluation of an Air

**Quality Modeling Approach for Lead**

**Emissions from Piston**

- **Engine Aircraft**

**Operating on Leaded Aviation Gasoline**

**Appendix D**

**Summer 2009 Model**

- **to**

- **Monitor Results**

NOTICE

This technical report does not necessarily represent final EPA decisions or

positions. It is intended to present technical analysis of issues using data

that are currently available. The purpose in the release of such reports is to

facilitate the exchange of technical information and to inform the public of

technical developments.

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# .East Tarmac 26th0204060801001201401601802009 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8Hour of Day

Lead Concentration (ng/m3)SRunupHTaxiNHTaxiSMRunupLightHeavyOffroadPointAreaHLandSHLandNHClimbMTaxiSMTaxiNMTakeoffMLandMClimbMApproachSTaxiSTakeoffSLandSClimbSApproachFigure D-1. East tarmac – July 26, 2009 lead concentrations (ng/m3).D-1East Tarmac 27th01020304050607080901009 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8Hour of Day

Lead Concentration (ng/m3)SRunupHTaxiNHTaxiSMRunupLightHeavyOffroadPointAreaHLandSHLandNHClimbMTaxiSMTaxiNMTakeoffMLandMClimbMApproachSTaxiSTakeoffSLandSClimbSApproachFigure D-2. East tarmac – July 27, 2009 lead concentrations (ng/m3).D-2East Tarmac 28th0501001502002503009 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8Hour of Day

Lead Concentration (ng/m3)SRunupHTaxiNHTaxiSMRunupLightHeavyOffroadPointAreaHLandSHLandNHClimbMTaxiSMTaxiNMTakeoffMLandMClimbMApproachSTaxiSTakeoffSLandSClimbSApproachFigure D-3. East tarmac – July 28, 2009 concentrations by source (ng/m3).D-3Residence 1: 26th0501001502002509 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8Hour of Day

Lead Concentration (ng/m3)SRunupHTaxiNHTaxiSMRunupLightHeavyOffroadPointAreaHLandSHLandNHClimbMTaxiSMTaxiNMTakeoffMLandMClimbMApproachSTaxiSTakeoffSLandSClimbSApproachFigure D-4. Residence 1 – July 26, 2009 lead concentrations (ng/m3).D-4Residence 1: 27th01020304050607080909 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8Hour of Day

Lead Concentration (ng/m3)SRunupHTaxiNHTaxiSMRunupLightHeavyOffroadPointAreaHLandSHLandNHClimbMTaxiSMTaxiNMTakeoffMLandMClimbMApproachSTaxiSTakeoffSLandSClimbSApproachFigure D-5. Residence 1 – July 27, 2009 lead concentrations by source (ng/m3).D-5Residence 1: 28th0204060801001201401601809 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8Hour of Day

Lead Concentration (ng/m3)SRunupHTaxiNHTaxiSMRunupLightHeavyOffroadPointAreaHLandSHLandNHClimbMTaxiSMTaxiNMTakeoffMLandMClimbMApproachSTaxiSTakeoffSLandSClimbSApproachFigure D-6. Residence 1 – July 28, 2009 lead concentrations (ng/m3).D-6Residence 2: 26th0204060801001201401609 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8Hour of Day

Lead Concentration (ng/m3)SRunupHTaxiNHTaxiSMRunupLightHeavyOffroadPointAreaHLandSHLandNHClimbMTaxiSMTaxiNMTakeoffMLandMClimbMApproachSTaxiSTakeoffSLandSClimbSApproachFigure D-7. Residence 2 – July 26, 2009 lead concentrations (ng/m3).D-7Residence 2: 27th010203040506070809 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8Hour of Day

Lead Concentration (ng/m3)SRunupHTaxiNHTaxiSMRunupLightHeavyOffroadPointAreaHLandSHLandNHClimbMTaxiSMTaxiNMTakeoffMLandMClimbMApproachSTaxiSTakeoffSLandSClimbSApproachFigure D-8. Residence 2 – July 27, 2009 lead concentrations (ng/m3).D-8Residence 2: 28th0204060801001201401601809 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8Hour of Day

Lead Concentration (ng/m3)SRunupHTaxiNHTaxiSMRunupLightHeavyOffroadPointAreaHLandSHLandNHClimbMTaxiSMTaxiNMTakeoffMLandMClimbMApproachSTaxiSTakeoffSLandSClimbSApproachFigure D-9. Residence 2 – July 28, 2009 lead concentrations (ng/m3).D-9Figure D-10. All sources – July 26–July 27, 2009.D-10Figure D-11. All sources – July 27–July 28, 2009.D-11D-12Figure D-12. All sources – July 28–July 29, 2009.